Backpack policies at sporting events

In this photo taken Wednesday, April 24, 2013, a security guard checks the backpack of a fan entering AT&T Park before a baseball game between the San Francisco Giants and the Arizona Diamondbacks in San Francisco. (AP Photo/Jeff Chiu)

NCAA — Varies from school to school. Examples: University of Texas prohibits bags larger than 9x9x15; University of Florida bans all backpacks.

NFL — Policies vary from team to team, with most teams allowing small backpacks in stadiums. The league enacted enhanced security guidelines for fans attending the draft this week; backpacks were prohibited.

NHL — Also varies by arena. Some teams, for instance the New York Islanders, don’t allow backpacks. Others, like the Detroit Red Wings, ban `oversized’ bags and search all bags that are allowed in.